50斤重的小孩提不動100斤的東西。50歲的老頭能提動。但是50斤重的小孩比50歲的老頭精力旺盛。可以一直的跑跳。

來源: 攀登2022 於 2024-06-18 05:25:16 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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